move SSID_optout_nomap post to n/

n/nomap.md

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+---
+layout: mini
+comments: true
+title: "Opting out of WiFi positioning (_nomap)"
+permalink: /n/nomap.html
+redirect_from:
+  - /english/2015/11/29/SSID_optout_nomap.html
+  - /blog/english/2015/11/29/SSID_optout_nomap.html
+  - /r/optout.md
+  - /r/_optout.md
+  - /r/_nomap.md
+  - /r/_optout_nomap.md
+robots: noai
+excerpt: Previously a blog post, now a note on _nomap in SSID.
+---
+
+# `_nomap`
+
+_{{ page.excerpt }}_
+
+`_nomap` in the end of your SSID will exclude your network from Google, Apple, WiGLE etc.
+
+<!-- editorconfig-checker-disable -->
+<!-- prettier-ignore-start -->
+
+<!-- START doctoc generated TOC please keep comment here to allow auto update -->
+<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
+<em lang="fi">Automaattinen sisällysluettelo</em> / <em lang="en">Automatically generated Table of Contents</em>
+
+- [Why?](#why)
+- [`_optout`](#_optout)
+
+<!-- END doctoc generated TOC please keep comment here to allow auto update -->
+
+<!-- prettier-ignore-end -->
+<!-- editorconfig-checker-enable -->
+
+## Why?
+
+Privacy. WiGLE.net may point your home directly just by entering the SSID and who knows how many similar services there are. While I have been thinking of this since 2015, there is at least one case where this has been used:
+
+- [Christian Haschek: The curious case of the Raspberry Pi in the network closet](https://blog.haschek.at/2018/the-curious-case-of-the-RasPi-in-our-network.html)
+
+## `_optout`
+
+Legacy from 2015-2016. Used to be part of Microsoft WiFi Sense that shared WiFi networks and passwords to all contacts.